scott



D. J. SCOTT.

OFFSET PERFECTING PRESS.

APPLICATION FILED SEPT. 29. I916.

Patented July 22, 1919.

3 SHEETS-SHEET I 8 nveMoz 5B1; attain-121 0.1. SCOTT; orrsn PERFECTING PRESS.

APPLICATION FILED SEPRZQ, 1916. 1,310,506.

3SHETS SHEET 2.

$51 at tozwua Patented July 22, 1919.

D.J.SCOTT. OFFSET PEHEECIING PRESS.

APPLICATION FILED SEPT. 29. I916- Patented July 22, 1919.

' '3 sumssnm 2.

ED STATES PATENT OFFICE.

DAVID JOHN SCOTT, OF PLAINFIELD, NEW JERSEY, ASSIGNOR T0 ISABEL-LA SCOTT AND DAVID J. SCOTT, EXECUTORS OF WALTER SCOTT, DECEASED.

OFFSET PERFECTING-PRESS.

- Specification of Letters Patent.

Patented July 22, 1919 To all whom it may concern:

Be it known that I, DAVID J. Soon, a citizen of the United States, and a resident of Plainfield, in the county of- Union and State of New Jersey, have invented certain new and useful Improvements in Ofiset Perfecting- Presses, of which the following is a specification. I

The present invention relates generally to offset perfecting presses and has more particularly reference to the arrangement of the units and elements composing such machine. The main object of the invention is the production of a machine in which both sides of the material will be printed by the offset method in one or more colors, and in which the operating parts are readily accessible for manipulation by the pressman.

Accordingly, the invention consists of the features of construction, combination of parts and arrangement of elements, several 7 Fig. 3 is a side elevation showing a modi fied form in which several colors are used.

Similar characters of reference, indicate corresponding parts in the different views.

' Turning first to the exemplification shown in Figs. 1 and 2, the machine consists of a plurality of units, each unit including a form-carrying, a transfer and an impression member. A indicates the form-carrying member of one unit and B the form-carrying member of the other unit. C 'is the transfer member of one'nnit and D the transfer member of the other unit. E is the impression member of one unit and F the impression member of the other unit. The form-carrying and transfer members of these units are arranged one above the other and with the impression member out of line with the other members to form an exposed operating side, the two units being grouped fer members.

with their operating sides outermost so as to render the parts accessible to the pressmau. Preferably, eachof the transfer members is provided with a throw-off 100 by means of which the said transfer members may be moved outwardly from the operating side and away from the impression and form-carrying members. So also the impression members are provided with throw-offs 101 whereby they may be moved inwardly toward each other and'away from the trans- 0 indicates the usual inking mechanism and N indicates a dampening mechanism which, if the work requires it, may be used in connection with each formcarrying member.

Suitable web associating and folding mechanisms are employed which are so arranged as to afford unobstructed access to the operating sides of the machine. Inthe preferred embodiment here shown, the folder Lis located at the side of one of the units but spaced therefrom so as ,to provide a gangway or platform H. Located above this passageway, in the present embodiment, are two angle bars 102 and 103, and located above the units is a slitter 104. It will be observed that by this construction every part of the machine is easily accessible.

I indicates a source of supply of paper in web form preferably located underneath the printing units; and this source preferably consists of two rolls so that while one roll is being perfected another roll may be placed in position ready for use. These rolls of paper are journaled in open sockets I. The paper is led from one of these rolls over a guide X and between the impression and transfer members of the first printing couple, thence to the under side of the imressionv member of the second printing couple'and between the impression member and transfer member of the second couple; after which the paper passes to a cylinder 104 that divides it into two sections, one of which passes straight to folder L, over guides X and X and the other section is passed around angle bars 102 and 103 so as to give the paper two quarter turns and bring it in superposed relation to folder L.

To prevent the printed side of the paper from s'muttingthe surface of the impression member of the second unit, an anti-smutting device 37 is arranged in contact with the surface of the impression member of the second unit and is located above it. The dampening mechanisms'N and the anti-smutting device 37 may be thrown off by means I paper is.

of levers 105. In the present instance, the, dampening mechanism is located adjacent to the operating sides of the machine.

Arranged adjacent to the end of the units is a motor 106 which drives gear 107, that imparts motion to the cylinders comprising the units and which, by means of bevel gears 108, shaft 109 and gearing 110, transmit power to folder 1 The transmission gearmg described is preferably located below the floor or below platforms, such as 111, located at the ends of the units.

In Fig. 3, .the construction of each unit is exactly the same but here an additional unit is provided located beneath one of the other two units with its operating side outermost. The members of this third unit are described as follows: the form-carrying member is indicated by B, the transfer member by I) and the impression member by F. The relation of the associating and folding devices with respect to the printing units is exactly the same as before. The lead of the web is here from source of supply I that is located below one of the two units that are arranged with their operating sides outermost, upward between the impression and transfer members of the first unit, then downward ta the lower side of the impression member of the lower unit, thence upward between the impression and transfer members of the other of the two first-mentioned units. It will thus be observed that there is a complete unit for each color and that associated with each of the impression members of the two units that print on the second side of the provided an anti-smutting device 37 and 37 What is claimed is:

1. A rotary offset web perfectingmachine comprising: a plurality of units printing from positive forms on opposite sides of impression receiving material, each unit including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the other and the impression cylinder out of line with the other cylinders to form an exposed operating side, the units being grouped with their operating sides outermost, and web associating and folding means located to afford unobstructed access to the operating side of the units, said means including afolder, and means for slitting the printed web and for leading the slitted sections in superposed relation to the folder.

2. A rotary oflset web perfecting machine comprising: a plurality of units printing from positive forms on opposite sides of impression receiving material, each unit includmg a. form-carrying, a transfer and an im- 'pression cylinder all of substantially the other and the impression cylinder out of line with the other cylinders to form an exposed operating side, the units being grou ed with their operating sides outermost, a older located at the side of one of the units and spaced therefrom to provide a gangway, and means for slitting and superposing the slitted sections and for leading them to the folder in superposed relation and located to afford unobstructed access to that operating side of the unit to which the folder is adjacent.

3. A rotary ofi'set web perfecting machine comprising: a plurality of units printing from positive forms on opposite sides of impression receiving material, each unit including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and 7 transfer cylinders being arranged one above the other" and the impression cylinder out of line with the other cylinders to form an exposed operating side, the units being grouped with their operating sides outermost, a folder located at the side of one of the units and spaced therefrom to provide a gangway, means for slitting the web coming fromtheunits, and angle bars located above the gangway between the folder and that unit to which it is adjacent for superposing the slitted product and leading it to the folder..

(i. A rotary odset web perfecting machine comprising: a plurality of units printing from positive forms on opposite sides of impression receiving material, each unit includmg a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged-one above the other and the impression cylinder out of line with the other c linder to form anexposed operating si e, the units being grouped with their operating sides outermost, a folder located at the side of one of the units and spaced therefrom to provide a angway, means for slitting the web and or running one of the slitted sections straight to the folder, and angle bars giving two quarter turns to the other slitted sections to bringthe two sections in superposed relation to the folder.

5. A multi-color odset web perfecting machine comprising; 'a lurality of units printing from pos1t1ve orms on opposite sides of impression receiving material, each unit including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the other and the impression cylinder out of line with the other cylinders to form emme an exposed operating side, two of said units being grouped with their operating sides outermost and a third unitbeing grouped beneath one of the two units with its operating side outermost, a web supply located under the other of the two first-mentioncd units, means for guiding the web through the machine from one unit to the other, and delivery mechanism associated with Said unit and located to afford unobstructed access to the operating sides of the units.

6. A multi-color offset web perfecting machine comprising: a plurality of units printing from ositive forms on opposite sides of impression receiving material, each unit including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the' other and the impression cylinder out of line with the other cylinders to form an exposed operating side, two of said units being grouped with their o erating sides outermost and a third unit 1 ing grouped beneath one of thetwo units with its operating side outermost, a web supply located under the other of the two first-mentioned units, means for leading the web from the source of supply directly above it, thence downwardly to the lowermost unit, and thence upwardly to the unit above it, and delivery mechanism associated with said unit and located to afiord unobstructed access to the operating sides of the units.

7. A multi-color offset web perfecting machine comprising: a plurality of units printing from positive forms 'on opposite sides of impression receiving material, each unit, including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylindersbeing arranged one above the other and the impression cylinder out of line with the other cylinders to form an exposed operating side, two of said units being grouped with their 0 erating sides outermost and a third unit eing-grouped beneath one of the two units with its operating side outermost, a web supply located under the other of the. two first-mentioned units, means for leading the web from the source of supply directly above it, thence downwardly to the lowermost unit, and thence upwardly to the unit above it, an anti-smutting device engaging with the surface of thennpression cylinder of the second unit and located adjacent to the upper side thereof, and delivery mechanism associated with said unit and located to afford unobstructed access to the operating sides of the units.

8. A rotary ofiset multi-color machine comprising: a plurality of units printing.

cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the other and the impression cylinders out of line with the other cylinders to form an exposed operating side, the units being grouped one above the-other with their operating sides outermost and facing the same way, and delivery means associated with said units lo cated to afford unobstructed access to the operating sides f the units.

9. A rotary offset multi color perfecting machine comprising: a plurality of units printing from positive forms, each unit including a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the other and the impression cylinder out of line with the other cylinders to form an exposed operating side, the units being arranged in two sets, one set including one of said units printing one side of impression receiving material and the other set including a plurality of units printing the other side of impression receiving material in several colors one unit of said second set for each color, the units of the second set being grouped one above the other with their operating sides facing the same way, and said sets being grouped back to back with the operating sides of the units outermost.

' 10. A rotary oifset multi-color perfecting machine comprising: a plurality of units printing from positive forms, each unit ineluding a form-carrying, a transfer and an impression cylinder'all of substantially the same diameter, the form-carrying and transfer cylinders being arranged one above the other and the impression cylinder out of line with the other cylinders to form-an exposed operating side, the units being arranged in two sets, one set including one of said units printing one side of impression receivin material and the other set including a urality of units printing the other s1 e o impression recelvlng material in several colors one unit'of said second set for.

each color, the units of the second set being grouped one above the other with their operating sides facin the same wa and said sets being oupe back to bac with the operating sldes ,of the units outermost, a source of suppl of im ression receiving material located eneath t e unit of the first set, and delivery mechanism located to afford unobstructed access to the operating side of the units of the second set and spaced therefrom by a gan way.

11.-A rotary 0 set web perfecting machine comprising: a plurality of units printing from positlve forms on opposite sides of impression receiving material, each unit" Pin the same diameter, the form-carrying and transfer cylinders being arranged one above the other and theimpression cylinder out of line with the other cylinders to form an exposed operating side, the units being grouped with their operating sides outermost, a web supply beneath the units, means for leading the web to the impression cylinder of one unit and thence to the impression cylinder of the other unit, and web associating and folding means located to afford unobstructed access to the operating side of the units, said means including a folder, and means for slitting theprinted web and-for leading the slitted sections in superposed re- 15 'lation to the folder.

DAVID JOHN SCOTT.

Witnesses:

CARL E. DRANGE, J. V. CoLEs. 

